情侣间最重要是信任。

Qínglǚ jiān zuì zhòngyào shì xìnrèn.

The most important thing between lovers is trust.

我们应该相互信任，共同合作解决问题。

Wǒmen yīnggāi xiānghù xìnrèn, gòngtóng hézuò jiějué wèntí.

We should trust each other and work together to solve problems.

他失去了我的信任，我再也不相信他了。

Tā shīqù le wǒ de xìnrèn, wǒ zàiyě bù xiāngxìn tā le.

He has lost my trust, and I no longer believe in him.